1. Find the fundamental functions of an arithmetic/logic unit (ALU) of a processor in the following list. Addition/subtraction o Multiplication/Division o Square and square root computation O Logic operations o Bit shifting and rotation o Data moving and memory accessing o Program flow control 2. The processor ARM Cortex-M4 is a. a 16-bit RISC processor. b. a 32-bit RISC processor. c. a 32-bit CISC processor. 3. The Thumb-2 mode of ARM Cortex-M4 processors supports a. only 16-bit instructions. b. only 32-bit instructions. c. both 16-bit and 32-bit instructions. 4. There are two stacks (main stack and process stack) implemented in an ARM Cortex-M4 processor. When the processor is in handler mode, the stack used is a. main stack. b. process stack c. either main stack or process stack. 5. Program instructions saved in memory region 0x00000000 - Ox1FFFFFFF of an ARM Cortex-M4 processor are fetched through the bus interface a. ICode b. DCode c. System 6. A Cortex-M4 processor may not have a. bus matrix. b. floating point unit. c. nested vectored interrupt controller. 7. A programs model of a processor does not include a core registers and memory of the processor. b. assembly instructions. c. digital electronics of the processor